Cats Eye Nebula, John Corban

Cats Eye Nebula

Equipment

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Acquisition details

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Description

Last night I thought I’d try and improve on an earlier Cat Eye attempt from last month. I’m glad I did because Portland area skies seem smoked out the next day from the NW fires. So, with 2x PowerMate in hand giving almost 5,600mm f.l. @ f22, I was good to go. The object is so bright that it needed only 45 second subs @ 800 ISO. With processing there were some difficulties with RegiStar successfully stacking only 9 out of 29 images. So, I went with the 9 successfully stacked mages from Registar. Perhaps I can get going sometime and do manual alignment on the remaining images. I did try to stretch it a wee bit by stacking a second group of images, at +.75 stops in Adobe raw, and then combining the 2 groups as layers in Photoshop. I think it might of helped just a little on the outer red jets.

Comments

Histogram

Cats Eye Nebula, John Corban